Grain separator



Nov. 11, 1930. o. N. NAGLE GRAIN SEPARATOR Filed March 14, 1929 3 Sheets-Sheet l -HWIV l INVENTOR Q Vjyaoyze ATTORNEY O. N. NAGLE GRAIN SEPARATOR Nov. 1l, 1930.

Filed March 14. 1929 3 Sheets-Sheet 2 INVENTOR BY LM mlmwlmmlpnmnm Elm ww ll il wlwwbml .M m wm m www;

ATTORNEY Nov. l1, 1930. o. N. NAGLE GRAIN SEPARATOR Filed March 14, 1929 5 Sheets-Sheet @sur lNvENToR azlzjvfgze L, W ATTORNEY .HFILF chai, and delivered" clean `for sackin l" so Patented Nov. 11, 1930 Pil-mi OFFICE os'cAR NICHOLAS NAGLE, ol1 T'URr'IN, OKLAHOMA GRAIN SEPARATOIR.

Application iled March 14, 1929. "Serial 110.1342144.;

V `The invention generally Yrelates to threshing machines, more particularly to that type inwhich grain is cut instanding condition thensuitably separatedfrom the straw and i g, and in'which agitated straw racks and separator grain pans" aref employed for accomplishing the grain separa-tion, and the said invention primarily has for :its obj ect toi provide novel means to be employed as substitutes for the to accomplish the separation of the grain from the straw and chaff in al more eicient manner than isfnow possible and without the 'cally constructed and ingeniously arranged screening troughs and Lscrewconveyers con Y structed and arranged ltofsupplant the usual straw racks and grain pans and `to assure discharge `of all straw from therthreshing machine reg'ardlessfof its condition, and tode` liver only cleanfgrainto` the grain shoe,fthe

troughs e and" conveyors,` being so "constructedand 4arranged as to be efficiently operable without undesirablenoise and vi- 3o bration and `:witl'i a' minimum of power consumption." ,e

Otherobjects will in part be obvious and ein; part `be pointedout hereina,iter.` Tothe attainment of the aforesaid objects and ends, the invention further residesin the novel details of construction, combination and arrangement of parts,`all of which `will "be flrstjfully described in the following `detailed description, then loe particularly pointed out 40 in the appended claims, reference being had to the accompanying drawings, in which 1 Figure 1 is a somewhat diagrammatic vertical longitudinal section of a threshing niachineembodying the invention. i f v "Figure i 2 anv enlarged [detail "vertical cross section taken on the line V2,-2 on Figure1.`f` i 'Figure 3 isa view'similar to Figure 2, the `s"`ction being taken on theline 8-3`onFig` uaiiwf y veyers A straw racks and grain pans and designed stringere`l5.fTheseframes efCh support a Figure 4 is anenlarged detailvertical cross section taken on the line lr-4 on Figure 1. e Figure 5 isan end viewof` the superposed screen convey/ers looking at the driving end. A Figures 6 and fr' arefdetail,perspective views ofthe upper and lower "trough `frames respectively, the conveyersbeing removed.

Figure 8 detail view illustrating the agitator fingerequipmentof the upper con`- Figures 9"and 10 arecplan views of theupper and lowerl separator units respectively in theircomplete form,` i

`l Figure l1 is an end view ofthe bottom con- Veyer, looking at the driving end. A

fFigurel of he drawings I haverillustrated theinvention applied oruse on aconventional` type offthreshing machine. p The harvesterbody,` generally"designatedl, is t shownsupported upon `vheels 2, andthe usual reel `3, intake conveyer 4t, threshing cylinder 5, heater. 6, chaff t andistraw discharge throat 7, grain shoewSfc-haifblowerffan 9` and grain take-oit n boot 10 are `also illustrated in their customary association.` Y

.Whenmy invention is in use, the grain and strawthrown` from the cylinder' 5 are not delivered onto straw racksI (and then into a grainfpan, but instead are delivered into; an .upperscreening unit ll'which takesthe place of thc customary `straw racks. e Al 'lower screening; unit 12 .isbpositioned beneath `the Vunit 119.` poeitioni or receiving anything that passesthrough the bottoinfofithe said t unit 11.-. Thisunit 1`2`repla'ces the customary grain pan.; See ligurel.L y

Each of the unitsll and includes a fir-aine body.cornpo`sed lend cross heads 13, intermediate cross` y braces 14"; and side `beams or 2","0 series-of parallel` connected troughs ,16,those oftherupperunit being reticulated or formed e of screeningmaterial throughouttheirwhole lengthas indicated at 17, while those of the lower unit are reticulated or` screenedfhali- C5 length only asindicated at 18 and have their remaining halves solid as indicated at 19.

`The solid half portionsof the lower troughs are disposed toward the front end of the Inae chine. SeeFigures'1,6and'7. 1U

@maritime nina mangime wrath a ;wnagiei'am-,s-- 'f fak The cross heads 13 of the unitirames supy port shaft bearings 20, and in each aligned vpair of such bearings. associated with-the respective troughs a shaft 21 is rotatably mount# ed.` The shafts 21 each carry a spiral conveyer 22, those ofthe upper unit beinglarger in diameter and Ialternatelyereversely directed, while "those ofthe `lower unitare smaller in diameter and may'all be directedinthe 'same way. Both sets of conveyor spirals snb'-Y stantially drag the respectivetrough.bottoms to assure proper conveying travel of the grain, straw and chaff.

vThe upper spirals are also equipped with agitating fingers 23 wliichsrveto'keeptheI` straw moving freely and overcome tendency thereof'to wraparoundthe shafts.; y Y -Each shaft V2 1 is equippedwith a sprocket 2 1Lland'a power shat`25 yis supported 'at'26 uponfan endgof each of theupoer' and lower units. YEach power shaft, 25 'drives onef unit shaft 21; through` meshingV bevel pinions 27,

the power shafts'fthemselves beingk connected by suitable power" transmitting' connectionsv 28` and ldriven through la; common power applyingA medium 2,9,carried.V by one of' them.

- ,l In thecase ofthejlowei unitaltrliate'pairs f 'of the' fs'p'rocketsar'e connected byV chains 30 whichtake around thesaidfsprocketpairs and serve ,to' i"otate allfofthe lower unit spirals'i'n one'direction1-l See Figur'eif 'i 5 .j l j On tlieupperiinit the chains Bl'taiie around alternate ones of "the 'sprocketsand over or funderthe interinodiate sprockets in the manchainy tiigliten'e'rs 32 Vmaygb'e Yemployed tof keep 'the cliainslftaut and togpreyentfengagementofthe reversely,travellingjflights which double over the internfld12kt@vr S'Pllocketsy 1 If desiredl theV screening ',unitsjmay be mounted zon.' a suitable incline, say for, example i`n degreegof onehalf inchof inclina-tion maf-@otlfflengthf f ranged I:as 'hereinjdisclosed will 'effectively v cleantlie graiiiuofstrawiandchaff even if wet d heparts-'a'reso constructed and `arranged deseamos, @ikea irl onipanying draw:

relatesif @maarathreshinacylideemeer, ai grain ashes; w1-thi., 'gra-ina ottaketboonjamd 1a blower fan deliveringg-over--theshoe .chargethroat each oir: vsaid ,screening units niferous' charge throat toward which the blower is direarwardly, said casing having a straw disrected; combinedfwith an upper screening unit located above the blower and grain pan levels and to the rear of and below said beater, and a lower .screening unit located below the upper unit 4and above the blower and grain pan 'levels,fsaid lower *unitkextending from a place-"adjacent the front'of the machine below said cylinder to a place adjacent said dis-V AVcharge throatggeachyofasaid screening units comprising longitudinally corrugated bottoms -h'al'ving a plurality of trough-like portions, c ontinuous spiral conveyors located in each'troughilikeportion, the bottom of said Vupper screening unit b eing.- oraminous from end to end, ythe bottoinfyof4 that portionV only ofthelower screeningiinit lwhereit lies below thefup'per unitl ,being'foraminoua and means to tur'nsaidspiral conveyorsV take conveyor, Y av thresliingcylinder, a beater, Y.

'a' `grainshoe with grain-1 ofltale bootand '4 a blower/fan [delivering over the ,grainy sho@ rearwardly, said casing liaying a str-aw d1`s.

rectd; combined v with lanv upperfscreening unit locatedabove the blower aiijfdfgralnpan levels andto therear ofand below 'saidbea-ter,

anda lowergscreeningun'itflocatedbelow the upper `unimi andxabove thefblogwer and v grain pan`flevels,fsaid lower unit extending fromaplaceta'dj acent vthe front of `the' maQhinc/,below said cylinderftoaplaefadjacent said-L dismeans4 to turn said v spiral conveyors, said blower. hef/iig tsdselligeend arranged; t0 deliver adjacent the 'fore' end/'of *the forami.-

bottom.'

2.: Ina threshing mais@ aggiustato-irjcliargelthroatt'oward'whichthe bloweris ,105 Dit whereitl-ies aio take conveyonafthreshing cylinder, a beateri* blow-@i fsa; denver-ing; venete? grain snee rearwardly saidr casing' having a vstraw dis- 'rdpwhich the',blowen isdi'y combined with ,an upper" screening r'ected gl levels andto the rear' of alid'blowthe beater;V

and lower screening; finit located below' the A 1i-premi# and ebnen@ blwerandaaan pan level-asafid lowerunitextendingfroma Charge-th @amnesia wat @eee-fetal@ Serna-ing; @its f .saleastlidaallnearfuaesd bien' f toms having a plurality, of trough-Elie;

i. izoYV Vunitlocated,above the 'blower and grain; pan

tions, continuous spiral conveyors located in each trough-like porti-on, the bottom of said upper screening unit being foraminous from end to end, the bottom of that portion only of the lower screening unit where it lies below the upper unit being foraminous,

means to turn said spiral conveyors, and said spiral conveyors having their spirals alternately-reversely directe 4. In a threshing machine, a casing, an intake conveyor, a threshing cylinder, a beater,4

a grain shoe with grain offtake boot, anda blower fan delivering over the grain shoe rearwardly, said casing having a straw dis-v charge throat toward which the blower is directed; combined with an upper screening unit located above the blower and grain pan` levels and to the rear ofand below said beater,

and a lower screening unit located belowthe upper unit and above the blower' and grain pan levels, said lower unit extending from a place adjacent the front of the machine below said cylinder to a place adjacent said discharge throat, each of said screening units comprising longitudinally corrugated bottoms having a plurality of trough-like portions, continuous spiral conveyors located in each trough-like portion, the bottom of said upper screening unit being foraminous from end to end, the bottom of that portion only of the lower screening unit where it lies below the upper unit y being foraminous, means to turn said spiral conveyors, the spiral y conveyors of the upper unit lying with their perimeters in close proximity while those of the lower unit lie separated a substantial disy i tance from each other.

OSCAR NICHOLAS NAGLE. 

